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Two converging lenses, the first by focal length 10.0 cm and the second with focal length 20.0 cm, are separated with 40.0 cm. An object, 3.00 cm in height, is placed 30.0 cm in front of the first lens. Where is the final image formed?
1. 11.1 cm after the second lens
2. 100 cm after the second lens
3. 45.0 cm after the second lens
4. 5.00 cm after the second lens
5. 5.00 cm before the second lens
at a given instant a particle with a mass of 5.00 x 10-3 kg and a charge of 3.50 x 10-8 c has a velocity with a
a man can row a boat at a speed of 6.00 kmh in still water. if he is crossing a river where the current is 3.00 kmh in
A radio station broadcasts at a frequency of 600,000 Hz. Know that radio waves have a speed of 3.00 x 10^8m/s, what is wavelength of these waves.
An inductor, a capacitor, and a 64.0-? resistor are connected in series with an AC generator; the generator produces an RMS voltage of 90 V. what is the average power output of the generator
In the typical X-ray lamp. The electrons are accelearated in the potential difference of 10000V before hitting the water cooled electrode. Find the shortest wavelength of X-rays
The current in a coil drops from 3.4 A to 2.8 A in 0.51 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil
A thin film of oil (with index of refraction 1.36) is located on a smooth, wet pavement. How thick is the oil film
A bicycle tire rolls down a 25 m hill and crashes into a car door. how fast did the tire collide with the door
an adventurous archaeologist crosses between two rock cliffs by slowly going hand-over-hand along a rope stretched
A spacecraft has a nonrelativistic (or classical) momentum whose magnitude is 1.3e14 kg · m/s. Find the relativistic momentum of the spacecraft
The dimensions of a parallel-plate capacitor are all increased by a factor of six. By what factor does the capacitance change? (The dimensions refer to the length and width of a plate and the spacing between the plates.)
A boat carrying a load of bricks is floating in a canal lock. One of the crew members throws a brick overboard, and it sinks. Does the level of the water in the lock rise or fall
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